1) RADIO AND TELEVISION:

Nowadays the evolution of television and radio media groups  are influencing society through the technological change: from analogical  to digital systems. Although some people think that radio will disappear, we think that this is not posible because radio and society have been interacting for a long time. 

One of the radio features is that it's a blind medium because is completely audible, because people use radio in travels, transport and sports broadcastings. By other way, radio is always most efficient because it's the quickest dissemination of content.
On the other hand, there is television, which we consider can get closer to society due to its visual feature. We can watch actual people, interacting with each other...shocking pictures that impress the whole audience.